Former V.O.S. member Park Ji Hun will participate in the OST for MBC weekend drama "Rascal Sons."

After Taru and Eru's songs, "It Hurts Because I Love" was written by Kim Jae Gon and will tell the heartfelt story between Lee Sung Jae and Myung Se Bin, as well as Ryu Soo Young and Han Hye Rin. Park Ji Hun's low range and his very emotional tone of voice is perfect for these storylines and also the dramatic endings, which are moving the viewers.

"It Hurts Because I Love" was composed with an orchestra and took over a month of mastering. 

Park Ji Hun said, "I think I definitely put all my skills to use that I developed over years of participating in OSTs."